Answer:
Aerobic respiration and fermentation are two processes that are used to provide energy to cells. In aerobic respiration, carbon dioxide, water, and energy in the form of adenosine triphosphate (ATP) are produced in the presence of oxygen. Fermentation is the process of energy production in the absence of oxygen.
The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs. The blood here passes through capillaries adjacent to alveoli and becomes oxygenated as part of the process of respiration.
Answer and Explanation:
Doctors must complete a four-year undergraduate program, along with four years in medical school and three to seven years in a residency program to learn the specialty they chose to pursue. In other words, it takes between 10 to 14 years to become a fully licensed doctor.